The person who is behind the boat will see much powerful and bigger waves than the person who is in front of the boat. This phenomenon is caused by the Doppler effect which describes the changes in the observed frequency of a wave whenever there is relative motion between the wave source and the observer.
The first one is 2
The second is 1
The third is 6
And the fourth is 3
In the context of chemistry, yes. Energy input is always equal to the energy output.
Answer:
Later when they are older
Explanation:
brainliest/
Polar.
Polar bonds have unequal sharing electrons while nonpolar, the opposite, has equal sharing electrons. This is a tactic typically used to determine whether or not a compound or element itself is polar or nonpolar.
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